ADIMAX3232EUE+
Overview
The MAX3232EUE+ is a dual-channel RS-232 transceiver designed for high-speed serial communication in space-constrained applications. It utilizes a proprietary low-dropout transmitter output stage and a dual charge pump to enable true RS-232 performance from a single 3.0V to 5.5V supply. This device requires only four small 0.1uF external capacitors, making it a compact solution for interfacing modern low-voltage microcontrollers with legacy serial peripherals.
Why Choose This Part
The device features a high data rate of 235Kbps and a 300mV receiver hysteresis for improved noise immunity. Its wide operating voltage range of 3V to 5.5V and 5V-tolerant inputs allow it to interface seamlessly with both legacy and modern logic levels. The 16-TSSOP package offers a significantly smaller footprint compared to traditional SOIC solutions, while maintaining a broad operating temperature range of -40C to 85C.
Applications
Key Specifications
Getting Started
To implement this transceiver, connect four 0.1uF ceramic capacitors to the charge pump pins (C1+/-, C2+/-, V+, and V-) as specified in the datasheet. Ensure the VCC pin is decoupled with a 0.1uF capacitor near the device. Since this is a hardware-level transceiver, no software configuration is required other than standard UART baud rate settings on the host microcontroller.
